feat: 초기 프로젝트 설정 및 룰.md 파일 추가

api.hyungi.net/node_modules/validator/es/lib/isAlphanumeric.js

@@ -0,0 +1,23 @@
+import assertString from './util/assertString';
+import { alphanumeric } from './alpha';
+export default function isAlphanumeric(_str) {
+  var locale = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'en-US';
+  var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+  assertString(_str);
+  var str = _str;
+  var ignore = options.ignore;
+  if (ignore) {
+    if (ignore instanceof RegExp) {
+      str = str.replace(ignore, '');
+    } else if (typeof ignore === 'string') {
+      str = str.replace(new RegExp("[".concat(ignore.replace(/[-[\]{}()*+?.,\\^$|#\\s]/g, '\\$&'), "]"), 'g'), ''); // escape regex for ignore
+    } else {
+      throw new Error('ignore should be instance of a String or RegExp');
+    }
+  }
+  if (locale in alphanumeric) {
+    return alphanumeric[locale].test(str);
+  }
+  throw new Error("Invalid locale '".concat(locale, "'"));
+}
+export var locales = Object.keys(alphanumeric);